Most of my bushwalking experience comes from Canada where no food (or anything with strong odors) enters the tent. It is all cached in a bag and hung from a tree away from the sleeping area in order to keep bears, cougars, wolves and rodents away from the camp.
I'm currently preparing for the South Coast Track and was intending to cache in the same way I have always done, but have been warned that if I hang my food from a branch the possums will have a field day. In the past I have attached the top half of a plastic bottle to the cache rope in order to deter rodents from scaling down but this would only serve as a small obstacle for a larger dextrous animal.
I do not want to keep any food in my tent because I aim to keep it hole-free.
My questions to you are:
1) Do you think hanging my food several metres below a tree branch and above the ground is a bad idea in Southern Tasmania?
2) How do you normally store your food at night in the Aussie bush?